42585771870 has 96 divisors (see below), whose sum is σ = 114880278240. Its totient is φ = 11350627200.

The previous prime is 42585771857. The next prime is 42585771871. The reversal of 42585771870 is 7817758524.

42585771870 is a `hidden beast` number, since 4 + 2 + 58 + 577 + 18 + 7 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42585771871) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8018776 + ... + 8024084.

It is an arithmetic number, because the mean of its divisors is an integer number (1196669565).

Almost surely, 2^42585771870 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42585771870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57440139120).

42585771870 is an abundant number, since it is smaller than the sum of its proper divisors (72294506370).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42585771870 is a wasteful number, since it uses less digits than its factorization.

42585771870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8632 (or 8620 counting only the distinct ones).

The product of its (nonzero) digits is 4390400, while the sum is 54.

The spelling of 42585771870 in words is "forty-two billion, five hundred eighty-five million, seven hundred seventy-one thousand, eight hundred seventy".